A hemispherical pit created by the impact of a meteorite or other object.
Any large, roughly circular depression or hole.
The basin-like opening or mouth of a volcano, through which the chief eruption comes; similarly, the mouth of a geyser, about which a cone of silica is often built up.
The pit left by the explosion of a mine or bomb.
To form craters in a surface.
To collapse catastrophically; to become devastated or completely destroyed.
To crash or fall.
A deep narrow valley or gorge in the earth's surface worn by running water.